Flight Incheon International Airport departs from Seoul Incheon International Airport at 11:05 and arrives at Singapore Changi Airport at 16:15.
The flighttime is about 6h 10m. The distance travelled ("as the bird flies"): 2923 Km. So the average speed is roughly 474 Km.
There is an 1 hour time difference between Seoul and Singapore
The best day to arrive at Seoul is Tuesday and it would be best to avoid Friday, as prices are on average 187.89% higher than on Tuesday. (Average prices, based on 260556 datapoints.)
We have a lot more statistics for flights TR 843 and between Seoul and Singapore.
USD